I have a 2000 Sonata 4 cylinder model and I've noticed in the last week or so that there is a very slight, almost imperceptible lurch when driving along around 50-55 kilometers per hour (I'm Canadian so I don't use miles in my lingo).
The lurch isn't when its shifting gears, just driving along. As I mentioned its so slight and it happens so quick that I don't even have time to glance down at my guages but I don't notice the rpms or speed changing in these small lurches. I do have my air on all the time and I tried a couple of times with the air off and for those little experiments, it didn't happen.
Could the extra load of the air conditioning cause this or is it a coincidence? Or is this a symptom of a bigger problem. I hope Hyundaitech can help with this but all other opinions would be welcome.
Thanks